Roller-bearing with resilient cage.



, G. s; LocKwooD. ROLLER 'BEARING WITH RRSILIENT CAGE.

APPLICATION FILED APR. 281 1910.A

991,218. I I Emma-Maya, 1911.

z sHEETs-s1111ET 2.

l -lllllL A' UNITED sTATEs PATENT oEEIoE.

CHARLES s'. LocKWooD, OE NEWARK, NEW JERSEY, AssIGNOR To HYATT ROLLEREEARINGr COMPANY, OE HARRISON, NEW JERSEY, A CORPORATION OE NEW JERSEY.

RoILLER-EEARING WITH REsILIEN'T GAGE.

` Specification of Letters Patent.

Patented May 2, 1911.

-Application led April 28, 191,0. Serial No. 558,226.

'Be it) known that I, CHARLES sex, and State of New Jersey, haveinvented certain new and useful Improvements in Roller-Bearings withResilient Cages,- fully described and represented inpthe followingspecification and the accompanying 4drawings, forming a part of thesame.

This invention relates to roller' bearings in whichthe seats for the:annular friction-rolls are tapering or of conical'form, as well astherolls themselves; and the object of the invention isYtlf-facilitatethe assembling of .the parts, the holding of the rolls:upon the hub-or casing when o'nce -assembled thereon, andtol hold the.rolls in-a working position upon their 'seats by a -collar upon theroll vengaging one end 'of thei'seat.

The drawing illustrates certain forms of the invention 1n which thecollars upon the rolls are lit-ted to a' groove or grooves upon the hub,and in which a cage'having curved lugs adapted to hold the rolls upontheconical vseat has the head of such cagedivided or slit radially topermit it to expand .when forcing the rolls longitudinally upon theconical seat. Such slitting ofthe head 'permits its size to varyduringthe assembling of the parts,'th us 'accommodating the rolls temporarilyto the exterior of the ridge c.

In the annexed drawing, Figure 1 is a cross section where hatched, of.aroller? bearing showing collars upon the outer ends ofthe rolls; Fig. 2is an elevation of the hub in sucha bearing; Fig. 3 is a section of ahub andcage showing the'position ofthe rolls when embraced bythe cageand crowding them longitudinally over a flange at the outer end. of theconical seat; Fig. 4 is an 'end view ofthe hub, cage and rolls carriedthereby; Fig. 5 is a cross section, where hatched, showing collars uponthe inner ends of the roll rotated in contact with one another; Figfshows the position of such rolls when embraced by the cage andcrowdthemlongitudinally upon the conical seat, which necessitates vthespreading or eX- pandingof the innerv head' of the cage; Fig.l 7 is--across section, where hatched, of a bearing#,liar/ imag one set of rollswith collars at 4their 0"" ter ends;

Fig. 8 is'an elevation of the hub shown in such bearing; Fig. 9 1s across-section, where hatched, of a bearing Y S. .Leoni woon, a citizenof the United States, residing at 289 Market street, Newark, county ofEs# having a doubly conical hub and rolls with collars at their outerends; Fig. 1 0 is an elevation of one of the rolls shown in Fig.

9; Fig. 1 1 shows the inner end. of a cage for the bearing shown in Fig.9, with the rolls carried by the cage; and Fig. 12. is an edge Aview ofthe cage alone.

In Fig. 1, the hub A is shown with' two -oppositely-inclined'seats' cjoined at their bases, with a groove Z atthev smaller end' of each seat,an annular ridge or flange c outside of such'groove, and a rabbet uponthe hub outside of such flange forming an angular-seat d to guide acage. The rolls e have collars 4e upon theirfouter ends tted to thegrooves b upon thehub, and their inner ends `roll in contact with oneanother. The inlner faces of' the ridges c form shoulders which preventany outward movement of the rolls. The casingis formed with in-v v.cline'd seats f adapted to embrace the outer sides of the rolls.

Fig 3 shows a similar construction with- 'out the' collars e on the endsof the rolls,

and.Fig. 4 shows a cage adapted to the rolls of Fig. 3.

. The cage of Fig. is formed in two halves of sheet-metal each having alarger inner Yso head g and a smaller outer head zconnected by barswhich lie between the rolls e. Curved lugs j are Vformed upon the barsand bent to embrace the outer sides of the rolls soas to hold thempositively upon the hub or casing seats; The heads g are shown fastenedtogether by rivets g after the rolls are assembled upon the hub, and thecasing is then applied. When the rolls are assembled upon the hub, andthe halves of the cage thus secured together, the rolls cannot escapefrom the cage but can be handled with the hub as aunitary structure,thus greatly facilitating the handling of the parts in manufacture andthe subsequent application of the casing to the outer sides of Thecurved lugs y prevent the insertion of therolls through the openingsbetween the cage-bars c', and in assembling the parts the rolls are rstplaced within the cage and then pressed longitudinally from the end ofthe hub A upon the seat a.

In advancing. toward the seat, the collar e is compelle to slide overthe elevated ridge or flange c, which forces the rolls farther from thecenterof the cage than is nor- 'cage is slit or divided radially',

the head h, when forcing the rolls over the flange c uponthe hub isshown in Fig. 3, the outer head of the cage being then lifted from itsseat upon the head, as shown in the right hand head L.. The expansion ofthe head is necessitated by the resistance offered by the lugs j to anyoutward movement of vthe rolls.

In Figs. 5 and G, the rolls are shown with lcollars c2 upon their innerends which revolve 1n contact with one another and fit jointly a singlegroove Z atthe bases of the conical seats a. In applying the cage withsuch rolls to the seat, the collar c2 crowds the ing and the cage androlls inserted inl the outer rolls outwardly, and the larger head of thecage therefore requires to be slit. The'expansion of this inner head gis clearly eX- hibited upon the right handhalf of the cage, p

in Fig. 6.

`'Ihe collars e and e2 engage shoulders at the inner or outer end of theseats a upon the hub; but in Figs. 7 to 11, a construction is shown inwhich collars e3 upon the rolls engage the ends of the seats f in thecasing. .In this construction, the casing could not be applied to therolls after they are set upon the hub A, as the rolls could not yield toslip the collars over the seats of the casing to engage the ends of theseats. The arrangement of the lugs 7' and the assembling of the partsare, therefore, reversed, and lugs m are formed upon the inner side ofthe cage, as shown in Figs. 11 and l2, and are thus adapted to retainthe rolls upon tl seats in the casing.

With the collars fitted to the outer ends of the seats f in the casing,the outer or smaller head of the cage is crowded inwardly or contractedin diameter in forcing the rolls from the larger ends of their seats toengage the collars e3 with the smaller ends of the seats, and slits 7care, therefore, made in such smallery head, as shown in Figs. l1 andl2,-

of sufiicient width to perinit the contraction of the head as required'.Such operation of the cage applies to the bearing with'a single set ofrolls shown in Fig. 7, or to the bearwith doubly conical hub A2 shown inFig. 9. y With the construction of Fig. 9, the rolls at are .placedbetweenthe bars z' of the cage,

bearings member, the slitting of the cagehead permitting the rollers tosnap over the shoulder Lof the bearing member. The hub A2 is then;placed in position, and the other .cage to the opposite seat, which isintegral with the shell of the casing. The other cage e and set of rollsis then crowded into t loose ring F, compelling the smaller head of such4cage to contract in crowding the collars e3 over the larger end of theseat f,

the cage then, by its lugs m, holding the set of rolls within the ring Fduring its application to the casing. The large head g of each cagecontacts, when the collar es is against the shoulder at the end of theseat f, with a shoulder a7. upon the casing or ring F, such shoulder dpreventing movement of the cagein one direction, while the collar c3upon the roll prevents the movement of the rolls and cage in theopposite direction. `Each cage thus. independently of the other, holdsone set of the rolls upon one of the seats f in the casing. When t-herolls are thus connected to their respective seats in the casing, thehub, before the ring F is inserted in the casing, is inserted within therolls which are connected with the left hand seat, and the ring F isthen inserted with the rolls connected thereto.

The screw-thread upon the. ring F allows the adjustment of the seats fto the two sets of rolls in the usual manner, the ring F being lockedwhen adjusted by a screw n fitted into the ring F through a notch 0 inthe casing.

Having thus set forth the nature of the invention what is claimed hereinis:

1. In a roller bearing, a cage formed of sheet-metal with heads havingcrossbars fitted to the rolls and lugs embracing the curved sides of therolls, and having one of the heads divided radially to permit aspringing of such head in forcing the rolls with the cage upon abearing-seat.

2. A roller-bearing having a hub with a tapering seat to receiveanti-friction rolls, and a shoulder at one end of the seat, taperingrolls fitted to the seat with a collar upon each fitted to the saidshoulder, and a cage of vsheet-metal having heads with crossbars fittedto the rolls, and lugs embracing the curved sides of the rolls, andhaving one of the hieads divided radially to permit ani' accommodationof the rolls to the collar in forcing the rolls with the cage u pon abearing-seat.

3. A roller bearing ihavilg two oppositely inclined conical seatsawithshoulders at the ends of the seats toguide a cage, two sets of taperingrolls fitted to the seats with a collar'upon eachadapted to engage ashoulder on onelend of the seat, a double cage of sheet-metal: yeachhalf having heads With crossbars iitted to the twofsets of the rolls,

a head upon each half-cage adapted -to engage the shoulder at thev endof the conical seat, and curved lugs upon each half-cage embracing the-bodies of the rolls and operafing to hold them upon thesaid seat.

4:. A roller bearing .having a hub`1 with conical seats joined at theirbases,.a groove at one end of each of said seats, tapering rolls fittedto the seats with a collar upon each adapted to fit the grooveV at theend of its bearing-seat?, aI double cage of sheetmetal each half formedwith headshaving cross' bars fitted to the rolls, andcurVed/lugsembracing the bodies of the rolls; and one head of each half`divided radially to perniit the /springing of thehead when forcing therolls into pla'ce upon the conical seats,

andthe tw'o halves secured together for! operation.

5. A roller bearing having a hub with a tapering seat to receiveanti-friction rolls and a shoulder at one end of the seat, tape'r-- leach adapted to't the said shoulder; vanda vcage of sheet-metal havinghead rwith crossbars tted between the rolls, and lugs upon the cage.opposite to the seat having such shoulder and embracing the curved sidesof the rolls to hold them upon such sea-t, and

inw rolls fitted to the seat with a collar upon scribing witnesses.

#having one ofthe heads divided radially .to permit a change of form in,such head in forcing the rolls with the cage upon the 1 bearing-seat.

6. A double cage for a roller bearing, each- 'I half-cage formed withtwo heads connected .by sloping bars forming slots adapted tofit theanti-friction rolls, and with curvedv lugs` to embrace the bodies of therolls, one headv of each cage being divided radially to permit thespringing of the head when forcing the rolls intoplace upona'bearing-seat, and

the adjacent heads of the two halves "se-v cured' together to rotatethem'in unison. i 7 A double cage for a roller bearing, each half-cageformed with two heads` connected Vby sloping ba'rs forming slot-sadapted to fitanti-friction rolls, and with curved lugs upon the innerside to embrace the'bodies of the rolls, the adjacent heads of the cage.

being divided radially to permit the springing of the head when forcingthe'rolls into place upon a bearing-seat, andfsuch heads securedtogether to rotate the twohalves in unison. y

In testimony whereof- I havel hereunto et my hand in the presence of twosubf- CHARLES s;-LocKvvoon.4

-Witnesses: EDWARD H. MARoT,

